“Imagine you must survive without running,” Ada Limón writes in one of The Carrying’s (Milkweed) early poems, and for a while I can imagine nothing but that. But then, a few pages later, she writes, “Perhaps we are always hurtling our bodies toward/ the thing that will obliterate us . . .” and I think, yes, I imagine that is also true. On and on this book goes, making me imagine the world in one way and then another. Consider her poem “American Pharoah,” in which the speaker is quite literally sick and tired but is forced to leave the house to see some horse “not even race, ...